| Name | Company Number | Date Appointed | Rating |
|---|---|---|---|
| Armstrong Addison (Contracting) Ltd | 02249956 | 16/04/1992 | Dissolved |
| Balmer Lindley Manufacturing Ltd | 05697124 | 23/02/2006 | Dissolved |
| Balmer Lindley Projects Ltd | 05602193 | 14/12/2005 | Dissolved |
| Balmer Lindley Special Projects Ltd | 05697125 | 23/02/2006 | Dissolved |
| Blg Realisations Ltd | 03210255 | 17/06/1996 | Dissolved |
| Grundy Parapets Ltd | 04309920 | 25/11/2002 | Dissolved |
| Integrated Production Systems Ltd | 02891800 | 15/03/1994 | Dissolved |
| Lindley Parapet Systems Ltd | 04047103 | 14/09/2000 | Dissolved |
| Lindley Parapet Systems Ltd | 04047103 | 14/09/2000 | Dissolved |
| T & L Realisations Ltd | 01868837 | 30/05/2002 | Dissolved |
| VARIOLIGHT LIMITED | 05418127 | 01/08/2016 | Bronze |
| VERSCO LTD | 07581096 | 01/05/2016 | Silver |
| Name | Company Number | Date Appointed | Date Resigned | Rating |
|---|---|---|---|---|
| Armstrong Addison (Traffic Management) Ltd | 02364089 | 31/08/1991 | 31/01/1992 | Dissolved |
| Balmer Lindley Projects Ltd | 05602193 | 14/12/2005 | 23/02/2006 | Dissolved |
| DRAGONBY VALE PARTNERSHIP LIMITED | 04609421 | 05/12/2002 | 01/03/2014 | Dissolved |
| GRANBY COURT (BINBROOK) MANAGEMENT LIMITED | 05380771 | 02/03/2005 | 13/06/2014 | Dissolved |
| SAFEROAD UK LTD | 05697518 | 23/02/2006 | 11/02/2011 | Bronze |
| SAFEROAD VRS LTD | 05697126 | 23/02/2006 | 20/09/2006 | Gold |
| WILLOWCRETE MANUFACTURING COMPANY LIMITED | 00480317 | 03/09/1992 | 31/08/1997 | Silver |
| WILLOWCRETE MANUFACTURING COMPANY LIMITED | 00480317 | 03/09/1992 | 30/06/2006 | Silver |